Yeah, I didn't finish this one either :-(
I would be up for a little renewal and more time. I wonder if there is a way to drum it up a little and maybe get some new, fresh participants to build excitement again. That is the one thing that I think tends to happen with group builds - they have periods of lots of excitement and activity and then tend to just die away. If you do extend it, maybe we can put a new invite in the aircraft forum and see if anyone new wants to join (or like me - rejoin).
Leon